SolarP
SolarP is a graded series of
experiment which
allows you to determine the Solar Power
received at the Earth’s surface. This is an important
measurement within the context of Global Warming. Some of the power
from the Sun is absorbed in the Earth’s atmosphere. If we
correct for the absorption in the Earth’s atmosphere, by
making measurements at different Solar elevations, we can determine the
power per unit area above the Earth’s atmosphere and this is
known as the “Solar Constant”.
The Earth is at a distance of one Astronomical Unit (AU)
1.49×1011
m from the Sun. So every
square metre of the
surface of a sphere of radius of 1AU receives the Solar Constant power.
If we multiply the Solar Constant power by the surface area A of that
sphere then we can calculate the total power from the Sun. This is
called the Solar Luminosity L.
From
the Solar Luminosity (L) in Watts, we can calculate using e=mc
2
,
the rate of conversion of mass to energy and hence the rate of
consumption of Hydrogen. Making a few assumptions we can estimate the
lifetime of the Sun.
The comprehensive manual
provides
sunny day and cloudy day experiments
and advanced experimental options,so the SolarP experiments can be used
in both Schools and Universities. If clear sunny weather is not
available then results can be obtained from the analysis of existing
data and by experimental measurement of the thermal properties of the
detector.
Price
SolarP £168+VAT